RETOP Automatic welding and cutting carriage

HK-8SS Automatic Welding & Cutting Carriage
Portable Magnetic Auto-Welding Trolley — Precision, Speed & Consistency on Every Pass

The HK-8SS Automatic Welding & Cutting Carriage is a compact, lightweight, and highly portable automatic welding trolley designed for professional fabrication environments. Engineered for long, continuous weld runs with consistent bead quality, the HK-8SS eliminates the fatigue and inconsistency of manual welding — delivering up to 1.5× the productivity of a skilled manual welder. Whether on a shipyard, bridge project, steel structure, or petrochemical plant, this carriage keeps your weld straight, steady, and on-specification every time.

Key Features:

• Automatic Forward & Reverse Travel — Carriage can weld while moving in both forward and backward directions, allowing seamless continuous operation without repositioning.
• Powerful Permanent Magnet Guide Wheels — The magnetic wheel system keeps the trolley firmly adhered to the workpiece at all times, ensuring precise tracking along the weld bead even on vertical and horizontal surfaces.
• Synchronous Four-Wheel Drive — High-temperature-resistant rubber tyres with gear-driven synchronous four-wheel drive deliver smooth, vibration-free travel for consistent weld quality.
• X-Y Torch Adjustment Slide — The torch can be independently adjusted up, down, left, and right (50mm range) for precise torch positioning without stopping the run.
• Built-in Torch Wiggler (Oscillator) — Multiple swing modes allow adjustment of wavering speed, angle, off-centering position, and left/right dwell time — essential for wide bead and fillet weld passes.
• Quick-Return Function — High-speed return mode brings the carriage rapidly back to the starting position, minimising downtime between passes.
• Dustproof Anti-Magnetization Drive System — Precision copper gear drive sealed with silicon rubber gaskets protects internal components from weld spatter, dust, and electromagnetic interference.
• Aluminium Alloy Body — Lightweight yet rugged construction keeps the unit easy to carry and position on large workpieces.
• 360° Working Angle — Supports flat, horizontal fillet, and vertical angle welding positions with ±45° torch angle adjustment range.

Technical Specifications:

• Supply Voltage: AC 110V / 220V
• Power Consumption: 22W
• Travel Speed: 50 – 900 mm/min (continuously adjustable)
• Magnetic Adhesion: 10 – 25 kg
• Torch Adjustment Range: ±50mm (up/down, left/right)
• Working Angle Range: 360°
• Torch Tilt Adjustment: ±45°
• Net Weight: Approx. 8.5 kg

Components Included:

1. Carriage body with motor and planetary reducer drive unit
2. Permanent magnet guide wheels
3. X-Y adjustment slide (torch positioning)
4. Welding torch handle and holder
5. Torch wiggler (oscillation unit)
6. Control box with digital display panel

Applications & Industries:

• Shipbuilding — long hull seam and deck plate welding
• Bridge and steel structure fabrication
• Stiffened web plates, ribbed plates, boxing beams, and cross-section structures
• Petroleum and chemical pipeline engineering
• Train, engine, and heavy machinery manufacturing
• General MIG / CO₂ gas shielded welding and oxy-fuel cutting operations

Why Choose the HK-8SS?
Manual welding long seams is slow, tiring, and prone to inconsistency. The HK-8SS takes over the travel and torch control, allowing one operator to supervise multiple carriages simultaneously — dramatically cutting labour costs and improving weld quality. Its compact size means it can be deployed in tight spaces and on-site conditions where larger automated systems simply cannot go.

The HK-8SS — Where Automation Meets the Weld.
Trusted across ships, bridges, and steel structures worldwide, this carriage is the professional fabricator's answer to faster throughput, lower fatigue, and superior weld consistency.